Chapter 2 | |
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(4). Front Panel Switches & Indicators Headers
These headers are used for connecting switches and LED indicators on the chassis front panel.
Watch the power LED pin position and orientation. The mark “+” align to the pin in the figure below stands for positive polarity for the LED connection. Please pay attention to connect these headers. A wrong orientation will only cause the LED not lighting, but a wrong connection of the switches could cause system malfunction.
•SJ1:
Connects to ACPI LED cable of chassis front panel.
•SPK1:
Connects to the System Speaker cable of chassis.
•HDDLED (Pin 1, 3):
Connects to the HDD LED cable of chassis front panel.
•RST (Pin 5, 7):
Connects to the Reset Switch cable of chassis front panel.
•MSGLED (Pin 2, 4):
Connecting pins 2 and 4 to a single or dual color front panel mounted LED provides power on/off, sleep, and message waiting indication.
•PWR (Pin 6, 8):
Connects to the Power Switch cable of chassis front panel.
